HellermannTyton 308-30314 Heat Shrink Tubing, 3 mm, Black, 100 mm, 10 Pieces

Damaged cable insulation and messy wire bundles can lead to short circuits and unreliable connections. This heat shrink tubing provides a simple, durable solution: slide it over the area, apply heat, and it shrinks tightly to insulate and protect.

Who is it for

Electricians, technicians, and DIY enthusiasts working on electrical repairs, cable management, or harness assembly. It suits anyone who needs professional-grade insulation without special tools beyond a heat gun.

Main features

• 2:1 shrink ratio for a secure fit over connectors and splices
• Cross-linked polyolefin material resists abrasion and common chemicals
• Self-extinguishing per UL224 VW-1 for added safety in electrical work
• Wide operating range from -55 °C to +135 °C
• Pack of 10 pieces, each 100 mm long

Specifications

• Supplied internal diameter: 3 mm
• Recovered internal diameter: 1.5 mm
• Recovered wall thickness: 0.45 mm
• Colour: Black
• Length per piece: 100 mm
• Quantity per pack: 10 pieces
• Material: Cross-linked polyolefin
• Shrink ratio: 2:1
• Minimum shrink temperature: +90 °C
• Operating temperature range: -55 °C to +135 °C
• Dielectric strength: 20 kV/mm
• Tensile strength: 15 MPa
• Flame retardancy: Self-extinguishing (UL224 VW-1)
• Halogen free: No
• UV resistance: No
• Chemical resistance: Good against common fluids and solvents
• Certifications/Standards: UL 224 VW-1, CSA, VDE

Tips

Use a heat gun set to at least 90 °C and move it evenly around the tubing for a smooth, bubble-free shrink. For outdoor applications, consider additional UV protection since this tubing is not UV resistant.